Stray Light (Flare) Documentation

Stray Light History

Current Documentation

All documentation versions


Stray light (flare) documentation pages

Introduction: Intro to stray light testing and normalized stray lightOutputs from Imatest stray light analysis | History

Background: Examples of stray lightRoot Causes | Test overview | Test factors | Test ConsiderationsGlossary

Calculations: Metric image | Normalization methodsLight source mask methods | Summary Metrics | Analysis Channels | Saturation

Instructions: High-level Imatest analysis instructions (Master and IT) | Computing normalized stray light with Imatest | Motorized Gimbal instructions

Settings: Settings list and INI keys/values | Standards and Recommendations | Configuration file input

24.2

Usability

Calculations

Results

  • Adds indication of the exit condition for image processing masking to the result file(s)

Settings

  • (Imatest Master Only) Reorganizes the settings GUI and adds indications of bad settings at save time
  • Updates INI syntax (breaking change)

Plotting

Deprecations

24.1

Calculations

Settings Interface

  • (Imatest Master Only) Hides plot, image, and video settings that are not used based on upstream settings

Future Changes

23.2

Standards

Normalization

Calculations

Nomenclature

Miscellaneous

  • Adds the ability to reload settings from the INI

Future Changes

23.1

Light Source Masking

  • Separates masking settings for the reference image and test images
  • Adds the ability to use the Image Processing masking method
  • Adds the ability to use no masking (test images only)
  • Adds minimum stray light level threshold to Image Processing-based source masking to improve masking when the source is out of the FOV
  • Adds the ability to use Otsu’s method to determine the light source threshold for Image Processing masking

Normalization

Analysis

  • Adds count results: number of pixels with stray light worse than user-provided thresholds

Nomenclature

Results

  • Adds tabs (extra commas) in CSV outputs to delineate sections

22.2

  • Initial stray light offering